Hourly Weather | Today Thursday, February 26, 2026
Chino Hills, California
3 AM
Cloudy Night
52°
Feels Like 52°
0
Humidity: 98%
UV Index: 0
Wind: 4 mph
4 AM
Cloudy Night
52°
Feels Like 52°
0
Humidity: 99%
UV Index: 0
Wind: 4 mph
5 AM
Cloudy Night
52°
Feels Like 52°
0
Humidity: 100%
UV Index: 0
Wind: 4 mph
6 AM
Cloudy Night
50°
Feels Like 50°
0
Humidity: 100%
UV Index: 0
Wind: 5 mph
7 AM
Cloudy Weather
54°
Feels Like 55°
0
Humidity: 95%
UV Index: 1
Wind: 5 mph
8 AM
Cloudy Weather
57°
Feels Like 61°
0
Humidity: 84%
UV Index: 2
Wind: 4 mph
9 AM
Cloudy Weather
63°
Feels Like 70°
0
Humidity: 71%
UV Index: 3
Wind: 4 mph
10 AM
Cloudy Weather
70°
Feels Like 73°
0
Humidity: 60%
UV Index: 4
Wind: 4 mph
11 AM
Cloudy Weather
73°
Feels Like 79°
0
Humidity: 51%
UV Index: 4
Wind: 5 mph
12 PM
Cloudy Weather
77°
Feels Like 82°
0
Humidity: 45%
UV Index: 5
Wind: 6 mph
1 PM
Cloudy Weather
81°
Feels Like 84°
0
Humidity: 41%
UV Index: 4
Wind: 6 mph
2 PM
Cloudy Weather
82°
Feels Like 84°
0
Humidity: 38%
UV Index: 4
Wind: 7 mph
3 PM
Cloudy Weather
81°
Feels Like 82°
0
Humidity: 40%
UV Index: 3
Wind: 7 mph
4 PM
Cloudy Weather
79°
Feels Like 79°
0
Humidity: 43%
UV Index: 2
Wind: 7 mph
5 PM
Cloudy Weather
77°
Feels Like 75°
0
Humidity: 48%
UV Index: 1
Wind: 6 mph
6 PM
Cloudy Night
73°
Feels Like 72°
0
Humidity: 54%
UV Index: 0
Wind: 6 mph
7 PM
Cloudy Night
70°
Feels Like 68°
0
Humidity: 61%
UV Index: 0
Wind: 5 mph
8 PM
Cloudy Night
66°
Feels Like 64°
0
Humidity: 68%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 74%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
63°
Feels Like 63°
0
Humidity: 76%
UV Index: 0
Wind: 5 mph
11 PM
Cloudy Night
63°
Feels Like 63°
0
Humidity: 76%
UV Index: 0
Wind: 5 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 AM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.53 µg/m³
  • PM10: 13.42 µg/m³
  • O3: 0.032 ppm
  • NO2: 2 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 AM
28 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 6.82 µg/m³
  • PM10: 13.41 µg/m³
  • O3: 0.031 ppm
  • NO2: 2.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 AM
30 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.13 µg/m³
  • PM10: 13.48 µg/m³
  • O3: 0.029 ppm
  • NO2: 2.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 AM
32 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.57 µg/m³
  • PM10: 13.8 µg/m³
  • O3: 0.028 ppm
  • NO2: 2.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 AM
34 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.07 µg/m³
  • PM10: 14.29 µg/m³
  • O3: 0.027 ppm
  • NO2: 2.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 AM
37 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.87 µg/m³
  • PM10: 15.08 µg/m³
  • O3: 0.026 ppm
  • NO2: 3.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 AM
42 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 10.17 µg/m³
  • PM10: 16.35 µg/m³
  • O3: 0.027 ppm
  • NO2: 3.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 AM
50 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 12.22 µg/m³
  • PM10: 18.46 µg/m³
  • O3: 0.029 ppm
  • NO2: 4 ppb
  • SO2: 0.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 AM
55 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.16 µg/m³
  • PM10: 20.46 µg/m³
  • O3: 0.033 ppm
  • NO2: 4 ppb
  • SO2: 0.3 ppb
  • CO: 0.20 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

12 PM
57 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.45 µg/m³
  • PM10: 21.76 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.20 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

1 PM
60 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.54 µg/m³
  • PM10: 23.01 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

2 PM
60 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.75 µg/m³
  • PM10: 23.51 µg/m³
  • O3: 0.048 ppm
  • NO2: 1 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

3 PM
59 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.29 µg/m³
  • PM10: 23.33 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.51 µg/m³
  • PM10: 22.75 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
56 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.97 µg/m³
  • PM10: 22.34 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
55 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.32 µg/m³
  • PM10: 21.81 µg/m³
  • O3: 0.046 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 PM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.69 µg/m³
  • PM10: 21.27 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.8 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 PM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.32 µg/m³
  • PM10: 20.95 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 PM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.19 µg/m³
  • PM10: 20.82 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.6 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 PM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.16 µg/m³
  • PM10: 20.8 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.8 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 PM
52 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.09 µg/m³
  • PM10: 20.75 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.9 ppb
  • SO2: 0.1 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.